AT 010605C, W 3/6 RECEIVED (4) ROUNDS OF 82MM MORTAR IDF ON THEIR POSITION 4.5KM E OF HUSAYBAH IVO (37S FU 891 065). THE IDF ORIGINATED FROM N OF THE EUPHRATES RIVER, BUT THE POO WAS NOT IDENTIFIED. W 3/6 CONTINUES TO OBSERVE FOR A POO. NO CBF WAS CONDUCTED. NO CASUALTIES OR DAMAGES REPORTED.